Since this is a copy of an email sent to CS students at Stanford, I'm not sure it's intended to be public information. One of the staff members in the CS depart

Since this is a copy of an email sent to CS students at Stanford, I'm not sure it's intended to be public information. One of the staff members in the CS department emails graduates every year to survey salary data and to ask about how useful the recruiting resources provided by the department are. I'd imagine the numbers accurately reflect the responses received, although as others have mentioned there may be biases in who chose to respond.